Why???

OK so I had only one broody hen at my house sitting on eight silkie eggs. She was my first chicken and although not purebred, she's been my 4-H showmanship bird for the last three years. She was friendlier than any other of my chickens. Today when I went out to take care of her, the eggs were all cracked open on the ground beside her coop. I looked in the henhouse and she wasnt there and the floor was pushed up. I don't know how long she has been missing, but I think a fishercat got her and her babies. There are not extensive ammounts of feathers everywhere and there is no blood or body parts. I'm leaving her cage open with feed and water just in case she is OK. I'm just so sad because she was just like a family member.

I am so sorry to hear of your loss.
Doesn't sound like a weasel. They usually leave the body. A weasel might have gotten her initially, then something else might have carried her off? Not what you wanted to hear, I'm sure, but predators are numerous & devious.
I hope she managed to escape. Again, so sorry.